yup. 1.10 final ver. (i've got a rainbow facet...now im sure im playing 1.10
i thought of everything that i may be doing wrong...but i gave up some time ago...
i've just posted it here thinking you may have experienced something like this and have found a solution
Hmm.. Maybe provide screenshots or type out the exact steps you do as you're going through the process. You know. Start out with an empty cube and tell us what you're doing.
Honestly not trying to make it sound like you're doing something horribly stupid, but, hey. It happens.
phatbrava: It's so easy to put items into the Horadric Staff! You just click on it. And then you keep clicking and clicking and clicking and suddenly you hear Deckard Cain say, "Well done, hero!". Then a huge stash opens up the size of the entire screen! You can store hundreds of items in it and you can even transmute things like a Zod rune from a stack of keys and a cracked short bow!